<template>
    <scroll-view :scroll-y="true" class="viewport">
        <!-- 基本信息 -->
        <view class="goods">
            <!-- 商品主图 -->
            <view class="preview">
                <swiper :circular="true" @change="onChangeSwiper">
                    <swiper-item v-for="item in goods?.mainPictures" :key="item">
                        <image @tap="topPreviewImage(item)" mode="aspectFill" :src="item" />
                    </swiper-item>
                </swiper>

                <view class="indicator">
                    <text class="current">{{ currentSwiper + 1 }}</text>

                    <text class="split">/</text>

                    <text class="total">{{ goods?.mainPictures?.length }}</text>
                </view>
            </view>

            <!-- 商品简介 -->
            <view class="meta">
                <view class="price">
                    <text class="symbol">¥</text>

                    <text class="number">{{ goods?.price }}</text>
                </view>

                <view class="name ellipsis">{{ goods?.name }}</view>

                <view class="desc"> {{ goods?.desc }}</view>
            </view>

            <!-- 操作面板 -->
            <view class="action">
                <view class="item arrow" @tap="openSkuPopup(SkuMode.ADD_CART_BUY_NOW)">
                    <text class="label">选择</text>

                    <text class="text ellipsis"> {{ selectedSku }}</text>
                </view>

                <view class="item arrow" @tap="openPopup('address')">
                    <text class="label">送至</text>

                    <text class="text ellipsis"> {{ selectAddress }}</text>
                </view>

                <view class="item arrow" @tap="openPopup('service')">
                    <text class="label">服务</text>

                    <text class="text ellipsis"> 无忧退 快速退款 免费包邮</text>
                </view>
            </view>
        </view>

        <!-- 商品详情 -->
        <view class="detail panel">
            <view class="title">
                <text>详情</text>
            </view>

            <view class="content">
                <view class="properties">
                    <!-- 属性详情 -->
                    <view class="item" v-for="item in goods?.details.properties" :key="item.name">
                        <text class="label">{{ item.name }}</text>

                        <text class="value">{{ item.value }}</text>
                    </view>
                </view>

                <!-- 图片详情 -->
                <image
                    v-for="item in goods?.details.pictures"
                    :key="item"
                    mode="widthFix"
                    :src="item"
                ></image>
            </view>
        </view>

        <!-- 同类推荐 -->
        <view class="similar panel">
            <view class="title">
                <text>同类推荐</text>
            </view>

            <view class="content">
                <navigator
                    v-for="item in goods?.similarProducts"
                    :key="item.id"
                    class="goods"
                    hover-class="none"
                    :url="`/pages/goods/goods?id=${item.id}`"
                >
                    <image class="image" mode="aspectFill" :src="item.picture"></image>

                    <view class="name ellipsis">{{ item.name }}</view>

                    <view class="price">
                        <text class="symbol">¥</text>

                        <text class="number">{{ item.price }}</text>
                    </view>
                </navigator>
            </view>
        </view>
    </scroll-view>

    <!-- 用户操作 -->
    <view class="toolbar" :style="{ paddingBottom: safeAreaInsets?.bottom + 'px' }">
        <view class="icons">
            <button class="icons-button">
                <text class="icon-heart"></text>
                收藏
            </button>
            <!-- #ifdef MP-WIXIN -->
            <button class="icons-button" open-type="contact">
                <text class="icon-handset"></text>
                客服
            </button>
            <!-- #endif -->
            <navigator class="icons-button" url="/pages/cart/cart2" open-type="navigate">
                <text class="icon-cart"></text>
                购物车
            </navigator>
        </view>

        <view class="buttons">
            <view class="addcart" @tap="openSkuPopup(SkuMode.ADD_CART)"> 加入购物车</view>

            <view class="buynow" @tap="openSkuPopup(SkuMode.BUY_NOW)"> 立即购买</view>
        </view>
    </view>

    <uni-popup ref="popup" type="bottom" background-color="#fff">
        <ServicePanel v-if="popupName === 'service'" @close="popup.close()" />
        <AddressPanel
            v-if="popupName === 'address'"
            :addressList="addressList"
            @close="popup.close()"
        />
    </uni-popup>

    <!-- SKU弹窗组件 -->
    <vk-data-goods-sku-popup
        v-model="isShowSku"
        :localdata="localData"
        :mode="mode"
        add-cart-background-color="#FFA868"
        buy-now-background-color="#27BA9B"
        ref="skuPopupRef"
        :actived-style="activedStyle"
        @add-cart="onAddCart"
        @buy-now="onBuyNow"
    />
</template>
<script setup lang="ts">
// 获取屏幕边界到安全区域距离
import { getGoodByIdAPI } from '@/services/goods.ts'
import { onLoad } from '@dcloudio/uni-app'
import { computed, ref } from 'vue'
import type { AddressItem, GoodsResult } from '@/types/goods'
import ServicePanel from '@/pages/goods/components/ServicePanel.vue'
import AddressPanel from '@/pages/goods/components/AddressPanel.vue'
import type {
    SkuPopupEvent,
    SkuPopupInstanceType,
    SkuPopupLocaldata,
} from '@/components/vk-data-goods-sku-popup/vk-data-goods-sku-popup'
import { postMemberCartAPI } from '@/services/cart.ts'
import { getMemberAddressAPI } from '@/services/address.ts'
import { useAddressStore } from '@/stores/modules/address.ts'

const { safeAreaInsets } = uni.getSystemInfoSync()
// 当前选中的地址 没有就默认收货地址
const addressStore = useAddressStore()
const selectAddress = computed(() => {
    return addressStore.selectAddress?.fullLocation || '请选择收货地址'
})
// 获取页面请求来的参数
const query = defineProps<{
    id: string
}>()

// SKU弹窗相关
const isShowSku = ref(false)

// SKU组件 选中规格的样式
const activedStyle = {
    color: '#27BA9B',
    borderColor: '#27BA9B',
    backgroundColor: '#E9F8F5',
}

// 按钮显示模式
enum SkuMode {
    // 添加购物车 立即按钮都显示
    ADD_CART_BUY_NOW = 1,
    // 仅显示 添加购物车
    ADD_CART = 2,
    // 仅显示 立即购买
    BUY_NOW = 3,
}

const mode = ref<SkuMode>(SkuMode.ADD_CART_BUY_NOW)

const openSkuPopup = (val: SkuMode) => {
    isShowSku.value = true
    // 这里可以根据 mode 设置 SKU 弹窗的按钮显示模式
    mode.value = val
}

// 商品信息
const localData = ref({} as SkuPopupLocaldata)

// 获取商品详情数据
const goods = ref<GoodsResult>()
const getGoodByIdData = async () => {
    const res = await getGoodByIdAPI(query.id)
    goods.value = res.result
    // SKU组件所需格式
    localData.value = {
        _id: res.result.id,
        name: res.result.name,
        goods_thumb: res.result.mainPictures[0],
        spec_list: res.result.specs.map((v) => ({ name: v.name, list: v.values })),
        sku_list: res.result.skus.map((v) => ({
            _id: v.id,
            goods_id: res.result.id,
            goods_name: res.result.name,
            image: v.picture,
            price: v.price * 100, // 注意：需要乘以 100
            stock: v.inventory,
            sku_name_arr: v.specs.map((vv) => vv.valueName),
        })),
    }
}

// Sku 组件实例
const skuPopupRef = ref<SkuPopupInstanceType>()
// 计算被选中的 SKU
const selectedSku = computed(() => {
    return skuPopupRef.value?.selectArr?.join(' ').trim() || '请选择商品规格'
})

// 滑动轮播图
const currentSwiper = ref(0)
const onChangeSwiper: UniHelper.SwiperOnChange = (e) => {
    currentSwiper.value = e.detail.current
}
// 大图预览
const topPreviewImage = (url: string) => {
    uni.previewImage({
        current: url,
        urls: goods.value!.mainPictures || [],
    })
}
const addressList = ref<AddressItem[]>([])
const getMemberAddressData = async () => {
    const res = await getMemberAddressAPI()
    addressList.value = res.result
    console.log('获取地址数据', addressList.value)
}
const popup = ref()
const popupName = ref<'address' | 'service'>()
const openPopup = async (name: typeof popupName.value) => {
    popupName.value = name
    if (name === 'address') {
        await getMemberAddressData()
    }
    popup.value.open()
}

// 添加购物车
const onAddCart = async (e: SkuPopupEvent) => {
    await postMemberCartAPI({ skuId: e._id, count: e.buy_num })
    uni.showToast({ icon: 'success', title: '添加成功' })
    isShowSku.value = false
}

// 立即购买
const onBuyNow = (ev: SkuPopupEvent) => {
    uni.navigateTo({ url: `/pagesOrder/create/create?skuId=${ev._id}&count=${ev.buy_num}` })
}

// 页面加载时获取商品详情
onLoad(() => {
    getGoodByIdData()
})
</script>

<style lang="scss">
page {
    height: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.viewport {
    background-color: #f4f4f4;
}

.panel {
    margin-top: 20rpx;
    background-color: #fff;

    .title {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 90rpx;
        line-height: 1;
        padding: 30rpx 60rpx 30rpx 6rpx;
        position: relative;

        text {
            padding-left: 10rpx;
            font-size: 28rpx;
            color: #333;
            font-weight: 600;
            border-left: 4rpx solid #27ba9b;
        }

        navigator {
            font-size: 24rpx;
            color: #666;
        }
    }
}

.arrow {
    &::after {
        position: absolute;
        top: 50%;
        right: 30rpx;
        content: '\e6c2';
        color: #ccc;
        font-family: 'erabbit' !important;
        font-size: 32rpx;
        transform: translateY(-50%);
    }
}

/* 商品信息 */
.goods {
    background-color: #fff;

    .preview {
        height: 750rpx;
        position: relative;

        .image {
            width: 750rpx;
            height: 750rpx;
        }

        .indicator {
            height: 40rpx;
            padding: 0 24rpx;
            line-height: 40rpx;
            border-radius: 30rpx;
            color: #fff;
            font-family: Arial, Helvetica, sans-serif;
            background-color: rgba(0, 0, 0, 0.3);
            position: absolute;
            bottom: 30rpx;
            right: 30rpx;

            .current {
                font-size: 26rpx;
            }

            .split {
                font-size: 24rpx;
                margin: 0 1rpx 0 2rpx;
            }

            .total {
                font-size: 24rpx;
            }
        }
    }

    .meta {
        position: relative;
        border-bottom: 1rpx solid #eaeaea;

        .price {
            height: 130rpx;
            padding: 25rpx 30rpx 0;
            color: #fff;
            font-size: 34rpx;
            box-sizing: border-box;
            background-color: #35c8a9;
        }

        .number {
            font-size: 56rpx;
        }

        .brand {
            width: 160rpx;
            height: 80rpx;
            overflow: hidden;
            position: absolute;
            top: 26rpx;
            right: 30rpx;
        }

        .name {
            max-height: 88rpx;
            line-height: 1.4;
            margin: 20rpx;
            font-size: 32rpx;
            color: #333;
        }

        .desc {
            line-height: 1;
            padding: 0 20rpx 30rpx;
            font-size: 24rpx;
            color: #cf4444;
        }
    }

    .action {
        padding-left: 20rpx;

        .item {
            height: 90rpx;
            padding-right: 60rpx;
            border-bottom: 1rpx solid #eaeaea;
            font-size: 26rpx;
            color: #333;
            position: relative;
            display: flex;
            align-items: center;

            &:last-child {
                border-bottom: 0 none;
            }
        }

        .label {
            width: 60rpx;
            color: #898b94;
            margin: 0 16rpx 0 10rpx;
        }

        .text {
            flex: 1;
            -webkit-line-clamp: 1;
        }
    }
}

/* 商品详情 */
.detail {
    padding-left: 20rpx;

    .content {
        margin-left: -20rpx;

        .image {
            width: 100%;
        }
    }

    .properties {
        padding: 0 20rpx;
        margin-bottom: 30rpx;

        .item {
            display: flex;
            line-height: 2;
            padding: 10rpx;
            font-size: 26rpx;
            color: #333;
            border-bottom: 1rpx dashed #ccc;
        }

        .label {
            width: 200rpx;
        }

        .value {
            flex: 1;
        }
    }
}

/* 同类推荐 */
.similar {
    .content {
        padding: 0 20rpx 200rpx;
        background-color: #f4f4f4;
        display: flex;
        flex-wrap: wrap;

        .goods {
            width: 340rpx;
            padding: 24rpx 20rpx 20rpx;
            margin: 20rpx 7rpx;
            border-radius: 10rpx;
            background-color: #fff;
        }

        .image {
            width: 300rpx;
            height: 260rpx;
        }

        .name {
            height: 80rpx;
            margin: 10rpx 0;
            font-size: 26rpx;
            color: #262626;
        }

        .price {
            line-height: 1;
            font-size: 20rpx;
            color: #cf4444;
        }

        .number {
            font-size: 26rpx;
            margin-left: 2rpx;
        }
    }

    navigator {
        &:nth-child(even) {
            margin-right: 0;
        }
    }
}

/* 底部工具栏 */
.toolbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    background-color: #fff;
    height: 100rpx;
    padding: 0 20rpx var(--window-bottom);
    border-top: 1rpx solid #eaeaea;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: content-box;

    .buttons {
        display: flex;

        & > view {
            width: 220rpx;
            text-align: center;
            line-height: 72rpx;
            font-size: 26rpx;
            color: #fff;
            border-radius: 72rpx;
        }

        .addcart {
            background-color: #ffa868;
        }

        .buynow,
        .payment {
            background-color: #27ba9b;
            margin-left: 20rpx;
        }
    }

    .icons {
        padding-right: 10rpx;
        display: flex;
        align-items: center;
        flex: 1;

        .icons-button {
            flex: 1;
            text-align: center;
            line-height: 1.4;
            padding: 0;
            margin: 0;
            border-radius: 0;
            font-size: 20rpx;
            color: #333;
            background-color: #fff;

            &::after {
                border: none;
            }
        }

        text {
            display: block;
            font-size: 34rpx;
        }
    }
}
</style>
